# Hair Serum Trust my Sister for Medium Porosity Hair 40 ml

**URL:** https://aio.lv/en/product--trust-my-sister-5902539715323--12069451
**Data updated:** 2026-03-12 21:48 (EET)
**Category:** Face & Body Care
**Manufacturer:** Trust my Sister
**Manufacturer code:** 5902539715323
**EAN:** 5902539715323
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 9.49 €
**Prices and availability valid until:** 2026-08-08 23:59
**Price without VAT (21%):** 7.84 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--trust-my-sister-5902539715323--12069451

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 27.07.2026 | free |
| Pickup points | 30.07.2026 | 1.89 EUR |
| Courier delivery to door | 30.07.2026 | 4.99 EUR |

## Summary description

Trust my Sister hair serum for medium porosity hair, 40 ml. A leave-in serum formulated for hair with medium porosity to improve manageability, reduce frizz and add shine. Designed for targeted application to lengths and ends, suitable for daily use as part of haircare routines to smooth, protect and enhance appearance of treated or natural hair.

## Long description

Trust my Sister Hair Serum for Medium Porosity Hair, 40 ml is a leave-in treatment formulated to improve manageability, reduce frizz and add shine to mid-porosity hair. The lightweight serum is intended for targeted application on lengths and ends to smooth the hair surface, help detangle, and enhance the appearance of both treated and natural hair without weighing it down.
Advantages
This hair serum provides immediate smoothing effects and helps control flyaways while maintaining a non-greasy feel. Its formulation is tailored to medium porosity hair, supporting moisture balance by smoothing the cuticle and improving combability. The compact 40 ml packaging is suitable for daily use and travel, offering consistent application and visible shine enhancement.
Suitable for
Medium porosity hair that requires smoothing and frizz control
Lengths and ends needing detangling and protection
Hair that has undergone chemical treatments or heat styling and needs light conditioning
Daily styling routines where added shine and manageability are desired
Key specifications
Form: lightweight, leave-in serum
Volume: 40 ml
Target hair porosity: medium
Application area: lengths and ends
Primary benefits: smoothing, frizz reduction, shine enhancement, detangling
Suitable for daily use
How to use
Dispense a small amount of serum into the palm, rub hands together and distribute evenly through towel-dried or dry lengths and ends, avoiding the roots to prevent greasiness. Use more or less product depending on hair thickness and length: start with a pea-sized amount for short or fine hair and increase incrementally for thicker or longer hair. Style as usual; the serum can be applied before heat styling to aid smoothness and protection.
Usage recommendations
For best results, incorporate the serum into your regular haircare routine after cleansing and conditioning. Use sparingly on fine hair to avoid buildup, and combine with a suitable shampoo and conditioner formulated for medium porosity hair to maintain balanced moisture and long-term manageability.

## FAQ

### How much does the Trust my Sister hair serum 40 ml cost, and is it available for purchase?

The price is 9.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 6 pcs. are in stock, and you can place your purchase right now with delivery across Latvia and Europe or choose pickup at the Riga collection point. We offer favorable purchase terms, including the option to split the payment into convenient monthly installments. Availability and price are updated in real time, so we recommend placing your order in advance.

### If I order this product today, when will I receive my order?

If you place your order today, delivery will be as fast and convenient as possible. You will be able to pick up your order on 27.07.2026 at the Riga pickup point or choose delivery across Latvia and Europe. We carefully inspect every purchase and pack it securely for safe transportation.

### What payment options are available?

AiO.lv offers several payment methods: Bank transfer, Bank cards on-line, Apple Pay, Google Pay. All transactions are 100% secure and encrypted.

### Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

### What is the warranty period?

All Trust my Sister products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized Trust my Sister service centers and through AiO.lv

### Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

### Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. More information about warranty service: https://aio.lv/en/warranty

## Image

https://aio.lv/img/cache/product/12069451/67554400_large.webp